Card Range To Study

38 Cards in this Set

The ratio of voltage to current(Ein/Iin) at the input end is known as the?

INPUT IMPEDANCE (Zin).

The ratio of voltage to current at the output (Eout/Iout) end is known as the?

OUTPUT IMPEDANCE (Zout).

What connecting link is used to transfer energy from a radio transmitter to its antenna located on the mast of a ship?

Transmission line.

What term is used for the end of the transmission line that is connected to a transmitter?

Input end
generator end
transmitter end
sending end
source

What term is used for the end of the transmission line that is connected to an antenna?

Output end
receiving end
load end
sink

This line consists
of two wires that are generally spaced from 2 to 6 inches apart by insulating spacers. This type of line is
most often used for power lines, rural telephone lines, and telegraph lines

TWO-WIRE OPEN LINE

2 wire line advantages

simple construction

2 wire line disadvantages

high radiation losses electrical noise pickup because of the lack of shielding

essentially the same as the two-wire open line except that uniform spacing is
assured by embedding the two wires in a low-loss dielectric

TWO-WIRE RIBBON (TWIN LEAD)

consists of two insulated wires twisted together to form a flexible line without the use of spacers

TWISTED PAIR

It is not used for transmitting high frequency because of the?

high dielectric losses that occur in the rubber
insulation

consists of parallel conductors separated from each
other and surrounded by a solid dielectric. The conductors are contained within a braided copper tubing
that acts as an electrical shield